Turbine water-wheel



UNITED STATES PATENT OFFICE..

BENJAMIN H. LEWIS, OF HENDERSON, ALABAMA.

TURBINE WATER-WHEEL.

D SPECIFICATION forming part of Letters Patent No. 250,668, datedDecember 13, 1881.

Application led September 17, 1881. (N o model.)

To all whom it may concern Be it known that I, BENJAMIN H. LEWIS, ofHenderson, in the county of Pike and State of Alabama, have inventedcertain new and useful Improvements in Turbine Water-Wheels; and I dohereby declare that the following is a full, clear, and exactdescription of the invention, which will enable others skilled in theart to which it appertains to makeA and use the saine, reference beinghad to the accompanying drawings, which form a part ot' thisspecification.

Figure l is a bottom plan of my improved turbine. Fig. 2 is a verticalsectional view. Fig. 3 is a front view, showing the gate; and Fig. et isa detail view of the wheel detached from the casing.

Corresponding parts in the several figures are denoted by like'lettersof reference.

This invention relates to turbine waterwheels; and it consists incertain improvements in the construction of the same, which will hehereinafter fully described, and particularly pointed out in the claim.

In the drawings hereto annexed, A represents the casing, which isprovided with the chute B for the admission of water.

Near the front end of the chute is hinged a valve or gate, C, hy whichthe supply of water may be regulated or ,cut off, said gate beingoperated by means of a threaded rod, D, titted in one side of the chute,and having its inner end swiveled to the side ot' the gate.

E is the wheel, which consists of a regular polygonal core, F, to thesides of which tangential blades, G, are secured, as shown. To the loweredges of these blades are secured the sl'a-nting buckets H, from whichthe water is discharged through the bottom of the casing.

To facilitate the iiow of the water between the buckets K and the loweredges of blades Gr, said blades are provided with notches I, simply forthe purpose of increasing the size of the water-channels between theblades and the buckets, and the outer edges of the buckets H areconnected by an annular ring, J, which serves to strengthen and tie theparts together.

The upper aud lower sides of the casin g have bearings for the verticalshaft K of the wheel, said shaft heilig provided near its upper end witha pulley or gear, from which power may be communicated to the machineryto be operated. u

The operation of my improved turbine will be readily understood from theforegoing description, taken in connection with the drawings heretoannexed.

Ihe water, entering the casing through the chute B, strikes thetangential blades with great force and causes the wheel to revolve. Inescaping downward over the slanting buckets the weight of the water,instead of retarding the motion, acts with a downward pressure upon thesaid buckets, so as to increase the rapidity of the revolution of thewheel, and consequently augment the power.

The construction of my improved turbine is simple` and inexpensive, butfew and simple castings being required.

Having thus described my invention, I claim and desire to secure byLetters Patent ot' the United States- A As an improvement in turbines,the combination, with the casing A, having chute B, of the wheel E,consisting of a polygonal core, F, having tangential blades G andslanting buckets H, and the ring or tire J, substantially as and for thepurpose shown and specified.

In testimony that I claim the foregoing as my own I have hereto afxed mysignaturein presence of two witnesses.

BENJAMIN H. LE WIS.

Witnesses:

A. H. OWEN, O. WORTHY.

